Effect of Aging Temperature on Microstructure and Properties of Beryllium Bronze Elastic Elements

In terms of the problem that different beryllium bronze elastic elements were required different properties, the relationships between aging temperature and microstructure and mechanical properties were studied to different state beryllium bronze. The results show that, for C and CY4 state QBe2.0 beryllium bronze, the aging temperature should not be higher than 350 ℃,and for CY2 and CY state QBe2.0 beryllium bronze, the aging temperature should not be higher than 320 ℃.If exceeding above temperatures, hardness of the beryllium bronze would reduce, and the boundary reaction amount would increase, that is to say over-aging would happen. The obtained results could be used to guide aging treatment of beryllium bronze.